If the option for MEK is selected, it will be hardener with a red-dye additive. This is not an error. When added, you will know that the MEK is mixed throughout when all of the putty is an even pinkish color. With the clear hardener, it can sometimes be more difficult to achieve an even mix, as it makes no visible change.

We offer three different sizes of hardener with your resin.

The 15cc is enough hardener for a quart at 2%.

The 30cc is enough hardener for a gallon at 3/4%

The 60cc is enough hardener for a gallon at 2%.

If you are glassing below 75 we suggest getting the 60cc per gallon that way you do not run out of hardener.

Please check the mek chart prior to ordering so you get the right amount of hardener. If you have any questions please contact us and we will be happy to help. 772-464-0808